Gauge



R. H. HENEVHER.

GAUGE.

APPLICATION FILED Nov. 24, 1917.

l B415 @WT/@7U Patented Apr. 4I, 1922.

INVENTR WITNESSES: w By Attorneys.,

UNITED STATES PATENT OFFICE. g

ROBERT H. HIEN'IIIMIER.,` OF YORK, N. Y., ASSIGNOR TO A. SCHRADERS SON, INCORPORATED, OF BROOKLYN, NEW YORK, A CORPORATIONr 0E N'EW YORK.

' GAUGE.

Specification of Letters Patent. Patented Api. 4, 1922.'

Application led November 24, 1917. Serial No. 203,668.r

l The invention is particularly directed to tire pressure gauges of what is known as the pencil type, that is to say, gauges which are tubular in form and are adapted to be connected with ,the .tire valve at one end.

It is especially applicable to that class of pencil gauges wherein the indicating bar or sleeve is projected beyond the end of the gauge casing a varying distance to showV varying pressures.

In pneumatic tire gauges the graduations areusually either indicated .on the gauge bar or on the casing, andl being in some form of' printing or embossin require sufficient light to read them. The o ject of the present invention' is to provide a construction in which the pressures can be ascertained in the dark. To this end I provide al member which is adapted to act in combination with the indicator, and which can be set to a predetermined point, so that the proximity ofthe indicator to such point can b e ascertained by the sense of touch. The invention comprises 'other features of improvement which will be hereinafter described. y

Referring to the drawings, which show the invention as applied to the .well-known Schrader Universal type of pencil gauge- Figure lvis an elevation with the indlcating member retracted, and the setting member in its folded or Izero position.

Fig. 2 is 'a view at right angles to Fig. 1, showing the setting member extended, and the indicating sleeve projected from the casing. v i FFig.- 3 is 'an elevationat. right angles vto `ig. 2. 'y u j Fig. 4 is a perspective -view of the setting member detached. j

Referring -to the drawings,.let A indicate the gauge casing, the lower end of which B is adapted to be connected with a pneumatic tire valve or the like, such end having 'means for making a tight jointwith-the tire valve, and means for opening the valve proper of the latter, whereby air flows up within the gauge and projects the indicating sleeve C fromA the upper end thereof to a point corresponding with the internal pressure of thetire. "The indicating sleeve C is adapted to maintainits position after the gauge is removed from the tire valve until the sleeve is restored by hand. The internal construction of such gauges is well-known and need not be here described.

D is one form of the setting member provided by the'present invention. In the preferred form shown it comprises a sleeve-like device havin means for frictionally engaging the exterlor of the gauge, such means being preferably provided by vsplitting the body of the setting member as shown at E. Preferably at the top there is an indexing element in the form of a ring F which is connected to the lower portion by arms G and H. Such arms are preferably of slight width in order that the usual gauge markings may not be obscured.v

Preferably the arms G and H have scales marked .on them which correspond'to the scales onthe indicating sleeve C. The top edge of the" gauge casmg indicated by the letter I serves asa pointer for both scales,

`and both scales have the same graduations so that when the setting member' is adjusted vto a given position the indicating sleeve will sure.

` The relative positions of the setting member and indicating sleeve are determmedby placing the finger at the end of the setting member on the rin F, which serves as a f guide or indexing e ement fo1 determining vthe relative position o'f the indicating' sleeve.

member, it will also show' one hundred an five pounds pres- It willtherefore be apparent -that the engagement between the indexing element and the casing should be of suiicient movementl resisting character to prevent accidental or unintended displacement 4when applying the finger to take areading.

The manner of use will be alpparent. The setting member may be initia l j pressure which the user requires for his pary -set to that the ring F, the tire obviously requires morel infiation, and if it is above the ringthe tire requires deflation. Preferably the device is constructed. as shown so that the setting member may be completely retracted," in4 which position the upper 'ed of the ring F coincides with the upper geige-I of the gauge `casing.- Customarily uges of the type shown have a portion of reduced diameter and the ring is preferably made of suchdimensions as to fit this portion without extendingl above it. Such a folded or colla sed position is shown in Fig. 1, and when t e` parts are in such position the gaugemay be used as has heretofore been customary without reference to the setting member. y

After the pressure is taken and ascertained, the indicating sleeve C may be restored to its zero position by pressing it downward by the finger through the opening in the ring F. Instead of placing a scale onthe setting member, it is obvious that this may be placed upon the gauge casing.

he scale is not absolutely essential, since any position of the setting member maybe determined by the indicating sleeve C; that is to say, the indicating sleeve may be moved outward by hand to a predetermined position and the setting member adjusted in accordan Itherewith.

Inmoving the sleeve C outward, the gauge casing may be grasped by the hand, and by a short, swinging motion, the sleeve may be thrown outward, so that it is accessible for adjustment.

It will be understood that while I have shown and described the preferred form of the invention, variousrchan s may be made therein without departing rom the spirit of the invention.

What I claim is :f-

1. A pressure gauge comprising a body portion, an indicating element movable relatively to said body portion to positions,

designative of different pressures, and an indexing element carried b said body portion and settable in fixed -re ation therewith at different positions of adjustment clear of the path of movement of said indicating element and designative of different pres.

sures within the range of registration of' said indicating element, said indicating and indexing elements having parts adapted for a comparison of their relative positions by 'the application of the finger, whereby pressures registered. by the indicating element relative to the `pressure corresponding with the setting 'of said indexing element may be determined vby the sense of touch.

2. A pressure gauge comprising a body portion, anindicating element movable relatively to said body portion to positions designative of different pressures,`there being a gauge scale and-indexing portion, one on said body portion, and one on said indicating element, from which the different pressures may be read, an `indexing element carried by said bodyportion and settable in fixed rela tion therewith at different positions of adjustment clear of the path of movement of said indicating element and designative of different pressures Within the range of registration of said indicating element, said indieating and indexing elements having parts adapted lfor a comparison 'of their relative positions by the application of the finger, whereby pressures registered by the indicating element relative to the ressure corresponding with the setting o said indexing element, maybe determined by the sense of touch, there being a setting scale and index,

one `on said body portion and the other on said indexing element, whereby said elemen-t may be set in accordance with any desired pressure, the markings on said setting scaleI corresponding with those of said Agauge sca e.

3. A pressure gauge comprisin a' casing, an indicating element normal y housed within said casing but capable of being protruded therefrom to positions designative of different pressures, and an indexing element carried by said casing and settable in fixed relation therewith at diferent points of adjustment therealong designative of dif- .ferent pressures Within the range of registration of said indicating element, said indexing element being clear of the path of movement of said indicating element and said indicating and-indexing elements hav# .ingparts ada ted for a comparison of their relative positions by the application of the -finger,"A whereby the pressure vregistered by said indicatingelement relative to the pres-L sure corresponding to the setting of said indexing element may be determined by the sense of touch. y

4. A pressure ugecomprising a casing, an indicating e ement -n'ormally' housed within said casing but capable of ing protruded therefrom *to positions designative of different pressures .and maintained in such positions on removalo'f the gauge from the influence of the pressure by which lit is moved, and an indexin element carried by said casing and settab e in xedrelation therewith at different points of adjustment along the path ofmovement of said indicatvingelement designative of different pressures within its range of registration, said indexing element being clear of the path of movement of said indicating element and said indicating and indexing elements having parts adapted for a comparison of their relative positions by the application of the finger, whereby the pressure registered by said indicating element relative to the pressure corresponding to the setting of said indexing element may be determined by the sense of touch. v

5. A variably settable indexing device for a pressure 'gauge of the type having a casing and an indica-ting element normally housed thereby but adapted to be protruded therefrom to positions designative of different pressures, said indexing device comprising a structure having means adapted to firmly engage the exterior of the gauge cas` ing at any one of a number of different positions corresponding with different pressures within the range of registration of said gauge, and also having an indexing portion adapted to assume a'position contiguous to the indicating member of the gauge but clear oi' its path of movement.y thereby adapting it for use as a means of determining a registered pressure by the sense of touch.

6. A variably settable indexing device for a. pressure gauge of the type having a casing and an indicating element `normally housed thereby but adapted to be protruded therefrom to positions designative ot' different pressures, said indexing device comprising a. structure having means adapted to firmly engage the exterior of the gauge casing at any one of a number of different posit-ions corresponding with diii'ere-nt pressures within the range of registration of said gauge, scalemarkings along said indexing device corresponding with those of the scaleof the gauge on which the indexing device is to be used. and an indexing portion so located with respect to the casing engaging portion as to be adapted to assume a position contiguous'to the indicating member of the gauge but clear of its path of movement, thereby adapting it for use as a means of determining a registered pressure by the sense `of touch.

7. A setting member for tubular air pressure gauges comprising a tubular structure,

having means adapted to adjustably engage the exterior of the .gauge casing, and an indexing portion adapted to assume positions contiguous to the indicating member of the gauge, said setting member lying outside of the path of movement ofthe indicating member, whereby the movements of the latter do not affect the position of the setting member.

8. A setting member for tubular air pressure gauges comlprising a tubular structure, having means a( apted to a.d]ustably engage the exterior of the gauge casing, and an indexing portion adapted to assume positions contiguous to the indicating member of the gauge, said setting member lying outside of the, path of movement of the indicating member, whereby the movements of the latter do not affect the position of the setting member, and said engaging means comp-rising frictional means arranged at the lower part of the setting member.

9. A setting member for tubular air pressure gauges comprising a. tubular structure. having mea-ns adapted to adjustably engage the exterior of the gauge casing, and an indexing portion adapted to assume posi-v tions contiguous to the indicating member of the gauge, said setting member lying outside of the path ofmovement of the indicating member. whereby the movements of the latter do not affect the position of the setting member, and said setting member having a scale device to co-operate with a complementary part on the gauge casing to facilitate the setting of the member.

10. A tubular gauge having a casing, and an indicating member projecting beyond the casing when registering; a tubular setting member, adj ustably engaging the exterior of the casing, said setting member having an upper guide ring located beyond the casing when set for operation, and said setting member lying outside of the path of movement o't' the indicating member so that the indicating member can move past the guide ring, and said setting member having its lower engaging part connected to said upper guide ring by arms. In witness whereof, signed my name. l

ROBERT H. HENEMXER.

l have hereunto 

